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Free VAT & Tax Calculator

Calculate Oman's 5% VAT online. Add VAT to a net amount or remove it from a gross total to see the net, VAT and total instantly, with no signup.

Net amount100.000
VAT (5%)5.000
Gross (incl. VAT)105.000

Why use this free tool

Add or remove tax

Calculate tax forwards on a net amount, or reverse it out of a gross amount in one click.

Any rate, any currency

Oman 5% by default, or set the rate that applies to you, in OMR, AED, SAR, USD, EUR and more.

Instant & free

No signup, no limits. Get net, tax and gross the moment you type.

Why use the Paper & Pen VAT calculator?

Whether you are pricing a quote, checking an invoice or filing a return, you need the net, tax and gross to agree to the last decimal. This calculator handles any rate in any currency, works both ways (add tax or reverse it out of a total), and is genuinely free. It opens at Oman's 5% rate and is fully configurable for other jurisdictions.

Let your software do the VAT for you

Doing tax by hand on every line is slow and error prone. Inside the full Paper & Pen ERP, VAT is applied automatically on the post-discount net of every invoice, captured in your books, and rolled up into return-ready reports, so you stop reaching for a calculator at all.

  • Automatic tax on every invoice and quote
  • Per-item and per-document tax rates
  • VAT summary reports ready for filing

Questions

Everything you need to know

What rate does this Oman VAT calculator use?
The calculator opens at Oman's 5% rate. Tax rules can change, so confirm the current rate with the Oman Tax Authority before relying on a calculation. You can enter any rate.
How do I remove VAT from a total?
Choose the remove (reverse) option and enter the gross amount. The calculator works out the net and the tax portion that was included in the total.
Can I use it for sales tax outside Oman?
Yes. Set the rate that applies to your transaction and choose any currency. It works for VAT, GST or sales tax anywhere in the world.
Does it calculate tax on a discounted amount?
Enter the net amount after discount and add tax to it. For automatic post-discount VAT on full invoices, create a free Paper & Pen workspace where it is handled for you.

Explore more

Stop calculating VAT by hand

Apply tax automatically on every invoice and get return-ready VAT reports with a free Paper & Pen workspace.

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